The invention discloses a hydraulic energy-saving control system for a forklift truck and a method for reducing the working energy consumption of the forklift truck. The hydraulic energy-saving control system comprises a steering gear of the forklift truck and a work valve and further comprises a first variable pump, a second variable pump and a control unit. The first variable pump is provided with a load feedback signal receiving port which is connected with a load feedback signal output port of the steering gear and a load feedback signal output port of the work valve. An oil outlet of the first variable pump is connected with an oil inlet of the steering gear and an oil inlet of the work valve. An oil outlet of the second variable pump is communicated with the oil inlet of the work valve. The control unit is connected with the second variable pump. According to the method for reducing the working energy consumption of the forklift truck, when the steering gear and/or the work valve of the forklift truck work/works, the first variable pump supplies oil to the steering gear and/or the work valve of the forklift truck; and when the work valve of the forklift truck has the requirement for large flow, the second variable pump and the first variable pump supply oil to the work valve together. According to the hydraulic energy-saving control system, oil can be supplied reasonably according to the flow of the steering gear and the work valve, so that waste of displacement is avoided, and energy is saved.


    Access

    Download


    Export, share and cite



    Title :

    Hydraulic energy-saving control system for forklift truck and method for reducing working energy consumption of forklift truck


    Contributors:
    CLAYTON GREENMAN (author) / MARK WALKER (author) / SHI FENGHUA (author) / LIAN HAIHUI (author)

    Publication date :

    2016-01-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last



    FORKLIFT TRUCK

    LEE JUSUNG / RYU YONGSEOK | European Patent Office | 2023

    Free access

    Forklift truck

    VAN DEN BERG NIELS | European Patent Office | 2020

    Free access

    FORKLIFT TRUCK

    VAN DEN BERG NIELS | European Patent Office | 2017

    Free access

    FORKLIFT TRUCK

    European Patent Office | 2022

    Free access

    FORKLIFT TRUCK

    YI JUNIL | European Patent Office | 2021

    Free access